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An indication method, data receiving method, and device for PDsch receiving information

A technology for receiving information and receiving channels, applied in wireless communication, signaling distribution, digital transmission systems, etc., can solve problems such as demodulation, PDSCH receiving performance degradation, and affecting PDSCH receiving performance

Active Publication Date: 2021-08-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the terminal can normally demodulate the physical downlink control channel (PDCCH), but cannot demodulate the physical downlink shared channel (PDSCH), or when the receiving performance of PDSCH is degraded, the base station needs to send a message to the terminal. Indicate new PDSCH reception information
The base station can use radio resource control (radio resource control, RRC) signaling to notify the terminal of new PDSCH reception information, but the method of using RRC signaling for the above notification has a long delay and low notification efficiency, which in turn affects the reception performance of the PDSCH

Method used

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  • An indication method, data receiving method, and device for PDsch receiving information
  • An indication method, data receiving method, and device for PDsch receiving information
  • An indication method, data receiving method, and device for PDsch receiving information

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specific Embodiment approach

[0058] Specific implementation: the network device side can indicate that the demodulation reference signal (Demodulation Reference Signal, DMRS) of PDSCH or PDCCH and one or more of the multiple reference signal resources previously reported by the terminal satisfy the QCL relationship, for example, the reference The signal may be a channel state information reference signal (Channel State Information Reference Signal, CSI-RS). Here, each reported CSI-RS resource index corresponds to a transmit-receive beam pair established during measurement based on the CSI-RS resource. It should be understood that the receiving beam information of two reference signals or channels satisfying the QCL relationship is the same, so based on the reference signal resource index, the terminal can deduce the receiving information of receiving PDSCH or PDCCH.

[0059] Wherein, the reference signal mentioned above may be a CSI-RS, or an SS block, or other reference signals. The embodiment of the pr...

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Abstract

The present application discloses a method for indicating PDSCH receiving information, a data receiving method and a device. In this application, the network device generates first indication information, the first indication information is used to indicate the physical downlink shared channel PDSCH reception information, wherein the PDSCH reception information includes the same information as the physical downlink control channel PDCCH reception information; the The network device sends the first indication information through the PDCCH. The application can improve the efficiency of indicating the receiving information of the PDSCH, and further can improve the receiving performance of the PDSCH.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method for indicating PDSCH reception information, a method and a device for receiving data. Background technique [0002] With the emergence of smart terminals, especially video services, the current spectrum resources have been difficult to meet the user's demand for capacity. High-frequency frequency bands with larger available bandwidth, especially millimeter-wave frequency bands, are increasingly becoming candidate frequency bands for next-generation communication systems. On the other hand, the communication system uses multi-antenna technology to improve system capacity and coverage, and the use of high-frequency bands can also reduce the size of multi-antenna configurations, thereby facilitating site acquisition and deployment of more antennas. However, the high-frequency band will lead to greater path loss, especially the influence of fact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B7/06H04W72/04
CPCH04B7/0617H04L5/0048H04W72/046H04B7/06H04W72/04H04L5/0044H04L5/0053H04L5/0094H04W72/23
Inventor 张荻刘建琴刘鹍鹏
Owner HUAWEI TECH CO LTD